CN2652038Y

CN2652038Y - Feedback electrical vibrator controller with double-circuit current

Info

Publication number: CN2652038Y
Application number: CNU032123523U
Authority: CN
Inventors: 杨忠华
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-04-04
Filing date: 2003-04-04
Publication date: 2004-10-27
Anticipated expiration: 2013-04-04

Abstract

A two-phase current feedback type electric vibrator controller is provided, which is characterized in that: the controller comprises a main circuit, a preset circuit, a trigger circuit and a feedback circuit. According to electric signals from a pulverizing mill after internal processing, the utility model controls size of a controlled silicon lead angle to realize stepless adjustment to feeding speed of an electric vibrating feed machine and ensure consistent state of feeding saturation of the pulverizing mill. The utility model has the advantages of higher output, smaller mechanical vibrating force, slighter mechanical abrasion, lower power consumption, thereby rendering a stable operating state for the pulverizing mill.

Description

Two-way Current feedback electrical vibrator controller

Technical field

The utility model relates to the control circuit technical field, particularly a kind of two-way Current feedback electrical vibrator controller that is used for electro-vibrating feeder.

Background technology

Electro-vibrating feeder is mainly used in the dosing of flour mill, the general relay that adopts is as control element, because the relay coil both end voltage just can be finished adhesive or release when reaching a certain amount of, and the folding number of times of relay is limited, therefore have slow in one's movementsly, dumb, the finish fineness that useful life is short, flour mill processes is unstable and influence the shortcoming that flour mill can not reach optimum Working.

Summary of the invention

The purpose of this utility model provides a kind of flour mill of realizing and is in the full state, the two-way Current feedback electrical vibrator controller of working stability of closing of charging.

The utility model is achieved in that and it is characterized in that controller is made of major loop, given circuit, circuits for triggering and feedback circuit, and wherein major loop adopts the controllable silicon SCR halfwave rectifier, and R6, C2 do capacitance-resistance and absorb the side voltage protection; Given circuit is added to given potentiometer W1 two ends by 15V alternating current depressor after bridge rectifier D11, C3 filtering; Circuits for triggering comprise bridge rectifier D12, give triode G2, G3 and unijunction transistor G4 after R1, G1, the D1 voltage stabilizing; Feedback circuit comprises regenerative circuit and negative-feedback circuit, regenerative circuit wherein is to add to T3 primary coil by the current signal that current transformer is exported, the voltage that T3 negative wire circle produces is filtering to the two ends of feedback regulator W3 through D9 rectification, C6, the voltage that the T3 secondary coil produces after D8 rectification and C5 filtering to the base stage of multiple tube G6, negative-feedback circuit is to add to T2 primary coil by the current signal that current transformer is exported, and the voltage that the T2 secondary coil produces adds to the two ends of feedback regulation potentiometer W2 after D10 rectification, C4 filtering.

After the signal of telecommunication via controller inter-process that the utility model can root a tree name flour mill sends, the size of control controllable silicon lead angle realizes the stepless adjustment purpose to the electric vibrating feeder delivery rate, make flour mill always be in the charging saturation condition, have that output increases, mechanical vibration force reduces, mechanical wear alleviates, power consumption reduces, make flour mill be operated in the advantage of stable status.

Description of drawings

Below in conjunction with accompanying drawing the utility model is described further;

Fig. 1 is the circuit diagram of two-way Current feedback electrical vibrator controller.

Embodiment

As shown in Figure 1, this two-way Current feedback electrical vibrator controller is made of major loop, given circuit, circuits for triggering and feedback circuit, and wherein major loop comprises controllable silicon SCR, resistance R 6 and capacitor C 2; Given circuit comprises transformer T1, bridge rectifier D11, capacitor C 3 and potentiometer W1; Circuits for triggering are included in bridge rectifier D12, resistance R 1-R5, R13, capacitor C1, C3, diode D1-D4, triode D1-G4; Regenerative circuit comprises current transformer T3, resistance R 11-R12, capacitor C 5-C6, diode D8-D9 and regulator potentiometer W3; Negative-feedback circuit comprises current transformer T2, resistance R 7-R10, diode D5-D7, D10, capacitor C 4, triode G5-G8 and regulator potentiometer W2, and wherein major loop adopts the SCR halfwave rectifier, and R6, C2 do the voltage protection of capacitance-resistance side; Given circuit is added to given potentiometer W1 two ends by 15V alternating current depressor after bridge rectifier D11, C3 filtering; Circuits for triggering comprise bridge rectifier D12, R1, G1, give triode G2 after the D1 voltage stabilizing, G3 and unijunction transistor G4, power transformer T1 secondary coil 40V alternating voltage is through bridge rectifier D12, R1, G1, supply with transistor G2 behind the D1 voltage stabilizing slicing, G3 and unijunction transistor G4, the determining voltage signal of giving by the control of two-way current feedback signal adds to the G2 base stage as control signal, thereby changed the internal resistance of transistor G3, the change of internal resistance causes the big of electric current, little change, also just changed discharging and recharging the time of C1, make the phase shift automatically of unijunction transistor G4 trigger impulse, thereby change the angle of flow of controllable silicon SCR; Feedback circuit comprises regenerative circuit and negative-feedback circuit, regenerative circuit wherein is to add to T3 primary coil by the current signal that current transformer is exported, the voltage that T3 negative wire circle produces is through the D9 rectification, C6 is filtering to the two ends of feedback regulator W3, this voltage forms linear change with the electric current variation of motor, the voltage that the T3 secondary coil produces after D8 rectification and C5 filtering to the base stage of multiple tube G6, negative-feedback circuit is to add to T2 primary coil by the current signal that current transformer is exported, the voltage that the T2 secondary coil produces is through the D10 rectification, add to the two ends of feedback regulation potentiometer W2 after the C4 filtering, this voltage also produces linear change with the electric current variation of motor.

Claims

A kind of two-way Current feedback electrical vibrator controller is characterized in that controller is made of major loop, given circuit, circuits for triggering and feedback circuit, and wherein major loop adopts the controllable silicon SCR halfwave rectifier, and R6, C2 do capacitance-resistance and absorb the side voltage protection; Given circuit is added to given potentiometer W1 two ends by 15V alternating current depressor after bridge rectifier D11, C3 filtering; Circuits for triggering comprise bridge rectifier D12, give triode G2, G3 and unijunction transistor G4 after R1, G1, the D1 voltage stabilizing; Feedback circuit comprises regenerative circuit and negative-feedback circuit, regenerative circuit wherein is to add to T3 primary coil by the current signal that current transformer is exported, the voltage that T3 negative wire circle produces is filtering to the two ends of feedback regulator W3 through D9 rectification, C6, the voltage that the T3 secondary coil produces after D8 rectification and C5 filtering to the base stage of multiple tube G6, negative-feedback circuit is to add to T2 primary coil by the current signal that current transformer is exported, and the voltage that the T2 secondary coil produces adds to the two ends of feedback regulation potentiometer W2 after D10 rectification, C4 filtering.